Portable computer



FIG. 1 is a front, top and right side perspective view of a portable computer showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a left elevational view thereof; and,

FIG. 8 is a front, top and right side perspective view thereof in condition that the cover is closed. 

The ornamental design for a portable computer, as shown and described. 